Muffle-leer.



APPLICATION FILED IUKE H1910 nanny MILES THOMPSON, or WASHINGTON, PENNsYLvANm. i

mUrrLE-LEEa To all whom t may concern: Be it known that I, HARRY M. THoMPso'N,

t a citizen `of the vUnited States of America,

.and resident of Washington, county A of' Washington, and State of Pennsylvania, have inventedcertain new and useful Im rovements` in MuiileLeex-s, of which the ollowing is a specification. `This invention relates broadly to annealing-:furnaces or leers for glassware, and more particularly to a leer of the continuous muletype.' l Y' The primaryobectof the invention 1SA to provide a,- m'ufl'le eer adapted for the use of raw or `clean producer gas, natural gas, or oil, as fuel, and embodying in the .lire-box end thereof readily re airable and renevvable means` whereby t eleer.' chamber 1s separated '.ffi'r'nin.L the combustion, or mule, chamber and s whereby ready radlatlon and uniform distribution of .heat throughout the leer chamber is facilitated.

' A further object is, to provide a leerof theg'charactermentioned in which the burn ers employed, whether the fuel used be'proi duejerfgas, or oil or natural gas, are located` in 'osl'tionsvfvhioh are 'conveniently acces-v Sib', l

Another object 1s' to the character mentions and in association with means for: introducing raw producer v gas,a regeneration chamber 1n which such gas is p1eh'eated`. With' theseand other important objects in view, `the Invention consists inthe rstructuralfeatures andV combinations which will hereinafter be set out, reference being had to the accompanying drawings, in which- Y FiA rel is an approximately, central longitu 'ina n of` a leer constructed in accordance with my invention;

Fig. 2 is a 1'; y ig. 3 is a transverse section on line 3,-3, Fig. 1;- and-- AFigui is an enlarged section on line 44,

,eferringtol said drawings, 1 indicates the .front end-wall, 2 the opposlte slde-.wa-lls and 3 the archor crown 'of the lire-box en furnace or leer for glass-f Extending `longitudinally through the leer is the leer-chamber 4 which is to of an annealing ware.

be heated, said chamber having in the hot'- tom-thereof theupper runway 5 uponwhich rovide,jin a leer of chamber 7 by a vertical division-wal] 1T. `From said regeneration chamber 16 the section of the hot, or lire-box, end

horizontal section on line 2-2,"

lwhich is radiated heat which apuntaron of man naar. Patented oct, 15, 1,913, Application ma June 1, uns. serial Nb. 23H11.

by lateral leer-chamber-defining wa ls .10, ,i

located parallel to and at a s aced distance from the outer side-walls 2. baid tile-plates have "shipda or tongue and groove edges, and are so isposed `relatively that expansion and contraotionr'thcreofis permitted without the production of cracks, crevices.y or fissures through which -could occur leak-I age of products of combustion which might result in contamination or discolorationof the ware in the leer chamber.

They products of combustion ass from the `muflie chamber 7 downwar throughvertical fiue's 11 provided betweenthe leer` walls and the outer furnace walls 2 to and through transverse ues 12 whichjcomv municate at their inner ends withlongitu'dii nal flues 13, thence through said lines-13l to and through transverse flues 14 'which com@l municate at their outer ends with vertical." iues 15, similar to said fines 1,1, provided between said Walls 2 and 10, thence throughI saidflues 15 to a regeneration chamber 16`` which is located over said Lev-chamber 4 and is separated therefrom by tile-plates 8' similar to tile plates 8 and which is also se arated fromv the inner end of the mue is composed of suitably mounted tiles, simi- 1.

lar tothe tiles 8, which are heatedby the said tlues and 'which radiate the absorbed heat into said leer chamber. IAlso mounted at suitable intervals in the walls 10 of the leer-chamber are other tiles l through passes through the vertical flues 11 Vand 15. I

When oil, clean plroducer ga'sxor naturnil gas is used as fue1,t e sa-r'neisl preferably irl-1` `products Lof ombustion escaping through.

troduced. directly into 4the mle chamber "muiliec amber throng lnsald division wall.

z )ded througih" i the said p oc cia with burner' rts 21 provided inthe front lend-wall 1. when raw producer gas is used, the-same is mixed w'ith air and both the gas and air are heated to'a combustionpromoting de prior to their introduction into the m e'. chamber. This mixin and preheating 'is' accom lished 4within t e reeneratin chamber ib, a conductor pi e 22 or rasenda similar pipe 23 for air eing directed through the'length o f said chamber, said pipes joinin atasuitable. oint located rearward ofthe directin the mixed" gis and air: into the The airfpipe 2 3 preferably leads from a suitably'located fan. or blower (not shown), or natural draft may be em loyed. The gas pipe 22 leads from a vertice l disposed suptedy upon and ro- ]ects o wnward throu h the -wall 25-w ich of the ue 19 Aleading to the staek.- -Said plpe 24 has therein or associated therewith a suitable` v adjustable valve or damper, as 26, by means of which the passage vof gas may be controlled or regulated.

The said gas-conducting pipe 22 is connected t said supply pipe 24 at a lower closed end 27 of the atter s othat a ocket or receptacle for dust and dirt is af-v orded between. said connection point and said closed end. A cl having' a suitable door-like closure 29 is: ro-

which access-may be ha to et for removing collected dust dtionaily. lend themselves A suitable closure, as-the'damper 30, is

provided whereby the opening 31 inthe division wall Nanay bev closed when not in use as an inletvfor-fproducer gas;

Suitabl'y arrangedh door-closed clean-out openings, yas 22,' may be provided in the outer walls 2 toA permit access to the iiues 12 'for cleanin Due to the-#employment yof 'the fiat tiles 8 and.l 8'! arranged vto plain Iroof for the lce'r chamber, increased radiation and absolutelyuniform distributionofheat vfrom one side ofesaid chamber' to the other is effected, as distinguished from the radiation and distribution obtainable when- 'hollow tiles arranged to form. an

arched roof are emph-iye'd. Furtl1er,'said lat tiles are not so readily warped: and distorted in form under the influence of the intense heat as are the col'ninonly. used hollowtiles .disposed'to form an arch` and, aflto .ready replace- .ment or repair when'injured without itsbeing! necessa ry to tear on! andjrebuih] the entire floor. v 1

.Xnother evident advantage of `the, structure herein' described is that which results from lhe arrangement of the, variousfines thrlgh suitableV burners (not shown) assoivision'wall 1 and thencean, inletjpassag'e 31 oint above the can-out opening 28 form ja perfectly fiatl 'marais in such manner-that heatis radiated -into the leer chamber through its 'tom as well as through its roof.

ysides and bot- The fact that the furnace is adapted for the use of any commonlyu'sedgaseous fuel is a 'feature of decided advantage amongr others Whichmight be recited, but which will le readily recognized by those-skilled in the an. l What is claimed is 1. In a muiiie leer, a leer` ychamber having a 4fiat roof and 'a door, both composed of lates, a Inutile chamber located over the ront end of said muiiie Vleer chamber and separated therefrom by saidv roof, are eneration chamber located rearward o said muie chamber and separated therefrom by a division wall, a vs erles offiues leadifrilg around said leer chamber from said mu e chamber to said regeneration` diambe', and

gas through said redirecting the s aI-ne a division wall, a series of fiues leadingV around said leerchamberf-roin said muie chamber to said regeneration chamber, and

a gas-conducting pipe leading through said regeneration vchamber and discharging into said muiiie chamber throughdivision wall.

3. In a vlmuiiie ler, a a. fiat roof and a' floor, 'both composed of plates, Va muiiie chamber located over `the leer chamber liavihg v front end of said Inutile leer chamber and separated 4therefrom by said roof, a regeneration chamber muiiie chamber a division, wall., a4 series located rearward "of said around said leer chamber from said mu and SelmratedI therefrom chamber to said regeneration chambenfand agus-conducting pipe and an air conducting pipe leading. vthrough said regeneration chamber, both of said pipes discharging through said division' wall'into 'said' mufiie chamber. v

4. Ina' mutiie leer, a leer chamber-having a fiat roof and a fioor,` plates, a mufiie chamber hic-ated over/ thc front end of said-inutile leer' chamber and separated therefrr'nn by said roof, a regeneration ehamber located rearward of Said mullle. chamber, a division walhseparatng said regeneration chamber fronrsaid inutile chamber and having 'a 'closahle"v passage therethrough; inea-ns -for. directing fuel both composed .of

through the, front ivall of said muiile chamber, ajseries oi' filles leading around'said leer chamber from said mullle chamber to said regeneration chamber, and gas-conduct said roof `beingmcomposed of tile-plates, a

inutile `chamber ving fuel inlet openings in the walls thereof sai muiile chamber being located over the :iront end of said leer'chainber, a regeneration chamber ,i located rear-l ward ofsaid muiiie chamber, a division wall having "a closable passage therethrough sepal rating said regeneration chamber from said muflie chamber, a Boor for saidleer chamber, fiueslocated beneath Said Hoor nues in said side walls roviding communication between said mu e chamber and the receivin ends of said under-floor flues, i'lues in said walls providing communication between the discharge ends of said under-floor said regeneration jchamber;`

ward of said mule chamber,

bei, flues located -'said sidewalls flues and said regeneration chamber, and means for conducting gas through said regeneration chamber and discharging` into said muie chamber through the passage in said division wall.

6. A muilie leer comprising outer side4 ywalls and end walls with an overl 'ng arch,

a leer chamber, a flat roof for sai chamber, said roof bein composed of tileplates, a muiiie chamber avin the walls thereof sai located over the ber,

a division Wall having a closable passage therethrough separating said regeneration chamber from` said muillechamber, a hoor for said leer chamoviding communication between said mu e chamber and thereeeivin ends of said under-Hoor fines, iiuesJin sai weils providing communication between the discharge ends of said under-floor dues and `s-conducting means wherein gas is pre catedl located within said regeneration chamber and discharging into' said inutile chamber through the passage in said division wall, and means for mixing air with said gas, i

7. A mule leer `coi'nprising outer side walls and end walls with an overl 'ng arch,V

a leer chamber, a flat roof for sai Vchamber, said roof beingl composedv of tile-plates, .a mule chamber aving fuel inlet openings in of said` under-floor fiues, fines in sai fuel inlet openings in mule chamber being front end of said leer cham-- a regeneration chamber located rear- .1

`tween the di beneath said door, ilues in yiiues and said regeneration chamber, a vertiducting pipe bein f re thewalls thereof, said muiile chamber being vlocated over the front end of said leer chamber, a regeneration chamber `located rear ward of said muie chamber, a division wall havinga L"closable passage therethroughsepa- `rating said regeneration chamber from said muliie chamber, a` Hoor for said leer chamber, fliies located beneath said fioor, ues in said side walls providing communication between said mule chamber and the receivin walls ends providing communication be'tweeir the dis-` charge ends of said under-floor iiues and said regeneration chamber, gas-conducting means wherein gas is preheated located' ...within said regeneration chamber' and dis.

charging into said mule chamber through ,a I

the y(passage in;Y said division wall, and means con ucting air through said regeneration chamber and mixin the same with the".

gas priorto its disc `arge into said` mule chamber.

8. A mule leer comprising outer side -1 wallsand endwalls with an overl ing arch, a leer chamber, a iiit roof for sai chamber, said roof being composed of tile-plates, a muiiie chamber having fuel inlet openings inthe Walls thereof, said muie chamber' being located over the front vend `of said Vleer chamber, a regeneration chamber located rearward of said mule chamber, a division wall' having a closable passage therethrough separatin said regeneration chamber from said mu e chamber, a floor for said leer chamber, iues located beneath said iioor,`

ues' inJ said side walls rovidin communication between said in cham in said walls "rovidin ycommunication bearge en of said under-door cal as su ply having a lower closed end ocate outside said regeneration chamber, a gasconducting (pipe `connected to saidl In testimony whereof, I ailx, my signature yin presence oftwo subscribing witnesses.

HARRY miras jrrioMPsoN, Witnesses: V f u GLENN' E. HINNING,"

JOHN N. Winsor.

r and the' receiving ends of said under-hoor i'lues, dues r land discharging into 

